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We do not attempt to list all error messages here: there are many which should never occur, and some which should be self-explanatory. This chapter lists a number of common error messages which PuTTY and its associated tools can produce, and explains what they mean in more detail. 10.20 ‘Network error: Cannot assign requested address’.10.19 ‘Network error: Connection timed out’.10.18 ‘Network error: Connection refused’.
10.17 ‘Network error: Connection reset by peer’.10.16 ‘Network error: Software caused connection abort’.10.15 ‘PuTTY X11 proxy: various errors’.10.14 ‘Incoming packet was garbled on decryption’.
#Putty software caused connection to abort mac
10.13 ‘Incorrect MAC received on packet’ or ‘Incorrect CRC received on packet’. 10.12 ‘No supported authentication methods available’. 10.11 ‘Access denied’, ‘Authentication refused’. 10.10 ‘Server refused our key’, ‘Server refused our public key’, ‘Key refused’. 10.9 ‘Unable to use key file’, ‘Couldn't load private key’, ‘Couldn't load this key’. 10.8 ‘Internal error’, ‘Internal fault’, ‘Assertion failed’. 10.6 ‘Remote side sent disconnect message type 2 (protocol error): "Too many authentication failures for root"’. 10.5 ‘The first cipher supported by the server is. 10.4 ‘SSH protocol version 2 required by our configuration but remote only provides (old, insecure) SSH-1’. 10.3 ‘This server presented a certified host key which was signed by a different certification authority. 10.2 ‘WARNING - POTENTIAL SECURITY BREACH!’. 10.1 ‘The host key is not cached for this server’.